#19 Added Getting started to README.md

[toretefre]

Before I opened this Pull Request, I have:

• [X] written 📝 code documentation where it made sense
• [X] written tests 🔬, where it was necessary
• [ ] updated the CHANGELOG.md file 📝
• [X] referenced all the issues in commits related to this PR

according to my best knowledge.

No code edited, which means all measures above is necessary. Issue reference will be added when squashing commits.

[codecov[bot]]

Codecov Report

Merging #20 into develop will not change coverage. The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #20   +/-   ##
========================================
  Coverage    33.05%   33.05%           
========================================
  Files           18       18           
  Lines          118      118           
  Branches        11       11           
========================================
  Hits            39       39           
  Misses          68       68           
  Partials        11       11

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update e950f44...af5b52f. Read the comment docs.

[lighthousebot]

Updated Lighthouse report for the changes in this PR:

Category	New score	Required threshold
SEO	80	-
Performance	56.99999999999999	-
Progressive Web App	100	1
Accessibility	81	-
Best Practices	93	-

Tested with Lighthouse version: 4.1.0

[haavarol]

Should reference issue #19